2001 Olds Intrigue 3.5 No Spark

[tyler219]

I have a 2001 Intrigue that died on me on the other day and I was hoping all you experts out there could help me figure out the problem.
I was driving on the freeway when the car died - no bogging or sputtering, just completely dead. The engine turns over fine and will fire for a second or so but then die. After repeated attempts to start it will not even fire at all, but after wating a while it will make some attempts the first few tries.
No DTCs.
The fuel pressure is good at approximately 40psi. I pulled one of the ignition modules and appear to be losing spark when the engine stops firing, which further leads me to believe it's an ignition problem and not a fuel issue.
In the process of troubleshooting I managed to get the car running (coincidence, I'm sure) with one of the ignition modules pulled , so I know the engine is capable of running on three cylinders (even with one plug out). This makes me quite confident that the problem is higher up than the ignition modules.
My first guess was fuel pump, but I'm getting good fuel pressure. My next guess was crank position sensor, because I know it's a common issue, but I'm getting no DTCs. Is it possible that the crank sensor is still the problem? It doesn't look like it's that hard to replace, but I don't want to start spending lots of money on parts if I don't have a good idea what the problem is.
Any ideas?
Thanks.

[dtownfb]

No DTC codes, fuel pressure is good, 3.5L engine....

I would begin with the ignition switch.

[krivasauto]

Originally Posted by tyler219

No DTCs.

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In the process of troubleshooting I managed to get the car running (coincidence, I'm sure) with one of the ignition modules pulled , so I know the engine is capable of running on three cylinders (even with one plug out). This makes me quite confident that the problem is higher up than the ignition modules.

****

OK, no DTCs as in nothing that a scanner with history reads or no engine light? Reason I ask is OM says northstar "limp home" feature will alternate firing 3 cylinders but won't turn on the light. Maybe it thinks ur motor is overheating?